package com.example.zhinongbao.fake;

import android.annotation.SuppressLint;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.util.Log;

import androidx.annotation.NonNull;


import com.example.zhinongbao.base.WeakRefHandler;
import com.example.zhinongbao.contract.MainContract;
import com.example.zhinongbao.entity.Goods;
import com.example.zhinongbao.entity.Photo;

import java.util.ArrayList;
import java.util.List;


public class bulide implements MainContract.IMainPresenter {

    private static final int WHAT_GET_GOODS_LIST = 0;
    private MainContract.IMainView mMainView;
    private Context mContext;

    public bulide (MainContract.IMainView mainView, Context context) {
        mMainView = mainView;
        mContext = context;
    }

    @Override
    public void getGoodsList() {
        List<Goods> list = new ArrayList<>();
        new Thread(new Runnable() {
            @SuppressLint("Range")
            @Override
            public void run() {
                //此处异步进行数据查询
                //Uri uri = Uri.parse("content://com.jlastu.znb.provider/goods/1");
                Uri uri = Uri.parse("content://com.example.zhinongbao.provider/goods");
                Cursor cursor = mContext.getContentResolver().query(
                        uri, null, null, null);
                try {
                    if (cursor != null && cursor.moveToFirst()) {
                        do {
                            Goods goods = new Goods();
                            int goods_id = cursor.getInt(cursor.getColumnIndex("_id"));
                            goods.setId(goods_id);
                            goods.setName(cursor.getString(cursor.getColumnIndex("goods_name")));
                            goods.setPrice(cursor.getDouble(cursor.getColumnIndex("goods_price")));
                            goods.setUnit(cursor.getString(cursor.getColumnIndex("goods_unit")));
                            goods.setBrowseCount(cursor.getInt(cursor.getColumnIndex("goods_browse")));
                            goods.setMessage(cursor.getString(cursor.getColumnIndex("goods_message")));

                            Uri photoUri = Uri.parse("content://com.example.zhinongbao.provider/photo");
                            Cursor photoCursor = mContext.getContentResolver().query(
                                    photoUri,
                                    null,
                                    "goods_id = ?",
                                    new String[] {String.valueOf(goods_id)},
                                    null);

                            if (photoCursor != null && photoCursor.moveToFirst()) {
                                do {
                                    Photo photo = new Photo();
                                    photo.setId(photoCursor.getInt(photoCursor.getColumnIndex("_id")));
                                    photo.setData(photoCursor.getBlob(photoCursor.getColumnIndex("image")));
                                    goods.addPhoto(photo);
                                } while (photoCursor.moveToNext());
                            }
                            Log.d("", "goods ====== " + goods.toString());
                            list.add(goods);
                        } while (cursor.moveToNext());
                    }
                } finally {
                    if (cursor != null) {
                        cursor.close();
                    }
                }

                //子线程通过Handler发送消息，完成线程之间的通信。
                Message message = Message.obtain();
                message.obj = list;
                message.what = WHAT_GET_GOODS_LIST;
                mHandler.sendMessage(message);
            }
        }).start();
    }

    Handler mHandler = new WeakRefHandler<bulide>(Looper.getMainLooper(), this, new WeakRefHandler.Callback() {
        @Override
        public void handleMessage(Object associatedObject, Message msg) {
            int what = msg.what;
            switch (what) {
                case WHAT_GET_GOODS_LIST:
                    mMainView.showGoodsList((List<Goods>) msg.obj);
                    break;
            }

        }


    });
    // 实现IMainPresenter接口的方法
    @Override
    public void getGoodsByCategory(int category) {
        // 调用Model层获取数据

        List<Goods> goodsList = mMainView.getGoodsListByCategory(category);
        // 将获取到的数据传递给View
        if (mMainView != null) {
            mMainView.showGoodsList(goodsList);
        }
    }

}
